After a strictly and complext test, we found Ultra MP4 joiner is the best mp4 joiner in the market now. It can join mp4 video files perfectly. With this mp4 joiner, you can join mp4, avi, mpeg, wmv, divx, xvid, vob, mpg, 3gp, flv, rm, mov, m4v, and any other video formats together, you can join multiple video files into one large like AVI, MPEG, WMV, RM, MP4, VCD/SVCD/DVD image files, and then you could burn the images into your VCD/SVCD/DVD disk.
Step 1: Free download MP4 Joiner and install it on your computer.
Step 2: Click Button to select the video files you want to join (highlighted no.1)
Step 3: You can edit the source video files, if you need or just would like.
Click on the source file you want to edit, then click button (highlighted no.2) to edit the selected file, you can set the start time and the end time, as the following picture :
Step 4: Sepcify the directory for output files by clicking the 'Change...' button, or just use the default directory (Note: after successful join, please click Open button to find where the file stored, if you try to find the converted file via other way, you may can not see the joined file)
Step 5: Sepcify other settings for advanced user, you can set output quality, frame rate, TV type, Aspect Ratio, Add letterbox and so on.
Step 6: Click Button to join the mp4 video files.
After successful join mp4 video files, the joined video files shall be stored in the folder you have previously selected. Download free version
Now convinced? Buy full version $34.95 now.